Boiler



July 20 1926. 1,592,818

- R. J. ADAMS BOILER Filed June 14, 1922 4 Sheets-Sheet 1 [mwr R. J. ADAMS July 20 .1926.

BOILER Filed June 14, 1922 4 Sheets-Sheet z July 20', 1926.

' R. J. ADAMS BOILER 'Filed June 14, 1922 4 Sheets-Sheet I;

July 20, 1926.

R. J. ADAMS BOILER Q 4 Sheet s-Sheet 4 F il ed June 14, 1922 yme sea v Patented July 20, 1926.

UNITED STATES RALEIGH J. ADAMS, OF CHICAGO, ILLINOIS.

BOILER.

Application filed June 14, 1922.

My invention relates to improvements in boilers, and has among its objects the production of a boiler of the kind described which is simple, compact, durable, reliable,

efficient and satisfactory for use wherever found applicable.

My invention relates particularly to water-tube boilers and has for one of its objects means whereby the steam will be passed a plurality of times in successively opposite directions between the drums so as to obtain the greatest possible super heating or heat absorption from the heat within the furnace.

Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the disclosures herein given.

To this end my invention consists in the novel construction, arrangement and com bination of parts herein shown and described, and more particularly pointed out in the claim.

In the drawings, wherein like reference characters indicate like or corresponding parts,

Fig. 1 is a sectional view of a boiler illustrating my invention;

Fig. 2 is a longitudinal sectional view through the front steam drum;

Fig. 3 is a section taken substantially on the line 3-8 of Fig. 2;

Fig. 4 is a section taken substantially on the line %4 of Fig. 2;

Fig. 5 is a longitudinal sectional view taken through the rear steam drum;

Fig. 6 is a section taken substantially on the line 6-6 of Fig. 5;

Fig. 7 is a section taken substantially on the line 77 of Fig. 5;

Fig. 8 is a section taken substantially on the line 88 of Fig. 4;

Fig. 9 is a section taken substantially on the line 9-9 of Fig. 7;

Fig. 10 is a sectional detail, slightly enlarged, showing the manner of holding the hand-hole covers in place, and

Fig. 11 is a plan View of the parts illustrated in Fig. 10.

In the drawings, wherein I have illustrated the preferred embodiment of my invention. 1 indicates any suitable type of setting adapted, for use with a water-tube boiler, having a plurality of water and steam drums 2, 3, 4 and 5, arranged hori zontally therein at differing elevations, the

Serial No. 568,114.

drum 2 representing the mud drum, at the lowest elevation near the rear of the boiler, and the drums 4 and 5 designating the front and rear steam drums respectively. The feed water is introduced into the drum 5 at 6, said drum having a safety valve, indicated at 7.- The steam is withdrawn or discharged from the boiler through the connection 8 at the front drum 4. Drums 2 and 4 are connected by a bank of tubes 9, which are set at the greatest inclination the head room will allow, in order to get the maximum heating surface in the first bank and using the longest tubes possible. The drums 2 and one above the other, are connected by the bank of tubes 10, and the drums 3 and 4, 4 and 5, and 5 and 2 are connected by the banks of tubes 11, 12 and 13 respectively. Suitable arches, fire doors, flues, etc., may be provided in the boiler, but as these do not form apart of my present invention they will not be described in detail. All the banks of tubes are readily accessible, the tubes themselves being spaced, as usual, alternately wide and narrow along the drums to make their removal easy.

Each of the drums 4 and 5 has a plurality of boxes or receptacles therein to divide these drums into a plurality of separated compartments, for a purpose to be herein described. These boxes or receptacles are made of suitable structural shapes and form steam chests, into which the ends of the tubes 12 extend. Each of these compartments has inlet and outlet openings for the admission and discharge of the steam. The path or flow of the steam is as follows:

The steam in the front drum 4 passes through the outlets a, as shown in Fig. 1 to 4 inclusive, into the drum 5, entering said drum through the inlets b. The steam then passes through the tubes at the outlets c, in the opposite direction, discharging into the drum 4 at the inlets d in one of the compartments 14 arranged therein. Said steam then passes out of said compartment through the outlet 6, into the compartment 15, having inlets f and outlets g, passing out through said outlets 9 through the tubes 12 into the compartment 16 in the drum 4, whereat it may be drawn off through the discharge outlet i leading to any desired point by means of the connecting pipes 8. The compartments 14 and 16 are formed by a suitable partition 17 extending entirely thereacross. Thus it is seen that the steam reaches a high degree of super heat by being passed in alternate directions successively from one drum to the other, before it is discharged.

In order to make the tubes accessible, the compartments have a plurality of cover plates 18 spaced therein and removably held in place by hand-hole clamps 19. It is obvious that a high degree of efiiciency and the fullest use of the heat of the'boiler will be effected by the multiple passage of the steam a number of times from oneend of the boiler to the other, making my device highly useful and entirely practical.

The efliciency of the boiler has been increased by arranging the bafiling to turn back the hot gases from the furnace and pass them downward along the tubes toward the mud drum, thus eliminating the comparatively cool film of gases otherwise adhering 'to the tubes; As the cooler gas is more dense, the tendency will be for it to move downward ahead of the hotter gases. The scrubbing action secured thus carries away the insulating films of cooler gas around the tubes, displaces them with hotter gases, and tends to lessen the'deposit of soot.

In the drawings, Fig. 1, the course of the gases through the boiler is shown. The hot gases from the furnace pass upwardly through the tubes 9 at the front of the bank in front of the bridge wall, baffled by the baffles 9, are turned back by the baffling 9" and follow the cooler and heavier gases down through the opening in the second pass,'baflied at 10, from whence they will sweep up into the space at the front of the What I-claim as new and desire to secure 1 by Letters Patent is:

y In a boiler, a drum having a plurality of compartments therein, one of said compartments having an outlet'through which steam may be withdrawn from the boiler, av second drum having a single compartment therein, none of said compartments having direct communication with the interiors of their respective drums, tubes independent of the compartments in the two drums for connecting the first drum to the second drum, tubes independent of the compartment in the second drum for connecting the second drum with a compartment in the first drum, tubes connecting said last mentioned compartment to the compartment in the second drum, and tubes connecting the compartment in the second drum to the compartment in the first drum provided with said outlet.

In testimony whereof, I have hereunto signed my name. 1

RALEIGH J. ADAMS. 

